Sleep diagnosis device
First Claim
1. A sleep diagnosis device comprising:
- a three-dimensional acceleration sensor,a posture detecting means for detecting a posture of a patient from a DC component of said three-dimensional acceleration sensor, anda breathing movement detecting means for detecting a breathing movement of the patient from an AC component of said three-dimensional acceleration sensor,wherein said breathing movement detecting means includes;
a one-dimensional converting means for generating one-dimensional acceleration data from the three-dimensional acceleration data obtained by said three-dimensional acceleration sensor;
an inflection point detecting means for detecting inflection points of a variation of said one-dimensional acceleration data from the one-dimensional acceleration data generated by said one-dimensional converting means; and
a breathing movement calculating means for calculating the breathing movement of the patient from the inflection points of the variation of the one-dimensional acceleration data obtained by said inflection point detecting means.
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Accused Products
Abstract
The sleep diagnosis device 1 of the present invention comprises three-dimensional acceleration sensors 2a and 2b, a posture detector 5 which detects a posture of the patient from a DC component of the three-dimensional acceleration sensors, and a breathing movement detector 4 which detects a breathing movement of the patient from the AC component of the three-dimensional acceleration sensors. The sleep diagnosis device of the present invention can detect the posture (sleeping posture) and the breathing movement of the patient by using one three-dimensional acceleration sensor, so it is possible to reduce the number of sensors. Furthermore, the sleep diagnosis device can detect the breathing movement accurately by the three-dimensional acceleration sensors.
33 Citations
11 Claims
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1. A sleep diagnosis device comprising:
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a three-dimensional acceleration sensor, a posture detecting means for detecting a posture of a patient from a DC component of said three-dimensional acceleration sensor, and a breathing movement detecting means for detecting a breathing movement of the patient from an AC component of said three-dimensional acceleration sensor, wherein said breathing movement detecting means includes; a one-dimensional converting means for generating one-dimensional acceleration data from the three-dimensional acceleration data obtained by said three-dimensional acceleration sensor; an inflection point detecting means for detecting inflection points of a variation of said one-dimensional acceleration data from the one-dimensional acceleration data generated by said one-dimensional converting means; and a breathing movement calculating means for calculating the breathing movement of the patient from the inflection points of the variation of the one-dimensional acceleration data obtained by said inflection point detecting means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification